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Stepwise selection on homeologous PRR genes controlling flowering and maturity during soybean domestication


Lu, S and Dong, L and Fang, C and Liu, S and Kong, L and Cheng, Q and Chen, L and Su, T and Nan, H and Zhang, D and Zhang, L and Wang, Z and Yang, Y and Yu, D and Liu, X and Yang, Q and Lin, X and Tang, Y and Zhao, X and Yang, X and Tian, C and Xie, Q and Li, X and Yuan, X and Tian, Z and Liu, B and Weller, JL and Kong, F, Stepwise selection on homeologous PRR genes controlling flowering and maturity during soybean domestication, Nature Genetics, 52 pp. 428-436. ISSN 1061-4036 (2020) [Refereed Article]

Copyright Statement

© The Author(s), under exclusive licence to Springer Nature America, Inc. 2020

DOI: doi:10.1038/s41588-020-0604-7


Adaptive changes in plant phenology are often considered to be a feature of the so-called ‘domestication syndrome’ that distinguishes modern crops from their wild progenitors, but little detailed evidence supports this idea. In soybean, a major legume crop, flowering time variation is well characterized within domesticated germplasm and is critical for modern production, but its importance during domestication is unclear. Here, we identify sequential contributions of two homeologous pseudo-response-regulator genes, Tof12 and Tof11, to ancient flowering time adaptation, and demonstrate that they act via LHY homologs to promote expression of the legume-specific E1 gene and delay flowering under long photoperiods. We show that Tof12-dependent acceleration of maturity accompanied a reduction in dormancy and seed dispersal during soybean domestication, possibly predisposing the incipient crop to latitudinal expansion. Better understanding of this early phase of crop evolution will help to identify functional variation lost during domestication and exploit its potential for future crop improvement.

Item Details

Item Type:Refereed Article
Keywords:flowering, genetics, soybean, plant phenology, adaptive changes
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Weller, JL (Associate Professor Jim Weller)
ID Code:147236
Year Published:2020
Funding Support:Australian Research Council (DP180103116)
Web of Science® Times Cited:133
Deposited By:Plant Science
Deposited On:2021-10-20
Last Modified:2021-11-03

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